Extracranial atherosclerotic stenosis is the main reason for the European and American white ischemic stroke and transient ischemic attack,while Atherosclerotic intracranial arterial stenosis is an important reason for Asian patients with stroke ,accounting for the 33% to 51% of a etiology ratio.The latest research suggests that varying degrees of blood pressure variability can affect the risk of stroke.This study observe the relationship between blood pressure variability and prognosis of ischemic stroke patients with intracranial arterial stenosis,with cranial magnetic resonance imaging (MRI + DWI),magnetic resonance angiography and Trans-cranial Doppler(TCD) .

Eligibility

Ages Eligible for Study:

18 Years to 75 Years

Genders Eligible for Study:

Both

Accepts Healthy Volunteers:

No

Criteria

Inclusion Criteria:

age : ≥ 18 years of age , ≤ 75 years old

with intracranial artery stenosis in ischemic stroke

the diagnosis of ischemic cerebrovascular disease are in line with the diagnostic criteria developed by the Chinese Medical Association Fourth National Cerebrovascular Disease Conference

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Please refer to this study by its ClinicalTrials.gov identifier: NCT01665235